多重耦合相位量子比特系统中的能量和纠缠
Energies and Entanglement in Multiply-coupled Phase Qubit Systems
摘要:
超导约瑟夫森结已被证明是构建量子比特或“量子比特”的强有力的候选者,量子比特或“量子比特”是未来量子计算机的组件。近年来,大量的理论和实验工作集中在研究单量子比特和双耦合固态量子比特的量子特性。我们提出了更多的三相量子比特的能量谱的数值模拟的结果,是在不同的配置电容耦合。我们讨论了组件量子比特之间的纠缠,表现在避免交叉,以及这些如何可能发挥作用,在建设门和传输量子比特状态信息。
英文摘要:
The superconducting Josephson junction has been demonstrated to be a strong candidate for building quantum bits or "qubits" which are the components of a future quantum computer. In recent years, considerable theoretical and experimental effort have been focused on studying quantum properties of single qubits and two coupled solid-state qubits. We present results of numerical simulations of the energy spectra of more three phase qubits that are capacitively-coupled in different configurations. We discuss the ensuing entanglement between component qubits as manifested in avoided crossings and how these may play a role in building gates and transmitting qubit state information.
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